/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

package cz.muni.fi.pb138.webrep;

import cz.muni.fi.pb138.webrep.metadata.processors.WarMetadataProcessor;
import cz.muni.fi.pb138.webrep.metadata.processors.WsdlMetadataProcessor;
import cz.muni.fi.pb138.webrep.metadata.processors.XsdMetadataProcessor;
import cz.muni.fi.pb138.webrep.repositories.ArtifactRepository;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Odin
 */
@WebServlet(name = "DeleteArtifactServlet", urlPatterns = {"/delete"})
public class DeleteArtifactServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String artifactName = request.getParameter("artifact");
        if(artifactName == null) return;
        
        String extension = "";
        int i = artifactName.lastIndexOf('.');
        if (i > 0) {
            extension = artifactName.substring(i+1);
        }
        switch(extension.toLowerCase()) {
            case "war": 
                new WarMetadataProcessor().deleteMetadata(artifactName);
                break;
            case "wsdl": 
                new WsdlMetadataProcessor().deleteMetadata(artifactName);
                break;
            case "xsd": 
                new XsdMetadataProcessor().deleteMetadata(artifactName);
                break;
            default: 
                response.sendRedirect(request.getContextPath()+"/listing");
                return;
        }
        
        new ArtifactRepository().deleteArtifact(artifactName);
        
        File artifactFolder = new File(request.getServletContext().getRealPath("") + File.separator
                    + UploadArtifactServlet.UPLOAD_DIR + File.separator
                    + request.getParameter("artifact"));
        
        for(File file : artifactFolder.listFiles()) {
            file.delete();
        }
        artifactFolder.delete();
        
        response.sendRedirect(request.getContextPath()+"/listing");
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
